Step 1: Prepare The Site For T320 Installation; Rack-Mounting Requirements - Juniper T320 Quick Start Manual

T320 Core Router Quick Start

Step 1: Prepare the Site for T320 Installation

Rack-Mounting Requirements

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Before installing the router, make sure that the site meets power, environmental, and
clearance requirements for the router. See the site preparation guidelines in the T320
Core Router Hardware Guide.
Rack-Mounting Requirements on page 4
Tools Required on page 5
You can install the router in a four-post rack or cabinet, or an open-frame rack.
The rack rails must be spaced widely enough to accommodate the router chassis's
external dimensions: 25.13 in. (63.82 cm) high, 31 in. (78.7 cm) deep, and 17.4 in. (44.2
cm) wide. The front-mounting flanges and center-mounting brackets extend the width
to fit into standard 19-in. (48.3 cm) racks.
The rack must be strong enough to support the weight of the fully configured router.
Each router can weigh up to 369.9 lb (167.8 kg) if fully configured. Up to three routers
can be installed into one standard (44-U) rack that can handle their combined weight,
which can be greater than 1100 lb (499 kg).
For service personnel to remove and install hardware components, there must be
adequate space at the front and back of the router. Allow at least 24 in. (61.0 cm) both
in front of and behind the router. NEBS GR-63 recommends at least 30 in. in front of
the router.
The rack or cabinet must have an adequate supply of cooling air.
In a closed cabinet, there must be a minimum of 6 in. (15.2 cm) of unobstructed airflow
behind the router, or airflow baffles must be installed to prevent recirculation of hot
air and overheating.
If the router is the only unit in the rack, mount it at the bottom of the rack.
When mounting the router in a partially filled rack, load the rack from the bottom to
the top with the heaviest component at the bottom of the rack.
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